The Vikings had announced that Peterson would start, posting on their twitter page: "He's back! Adrian Peterson is active AND will start today for the #Vikings."

Peterson was listed as questionable to play the Jaguars on the injury report, which by definition gave him a 50-50 chance. The 27-year-old two-time All-Pro pick is recovering from reconstructive surgery to repair two torn ligaments in his left knee last Christmas Eve. He's had no setbacks during his rehabilitation.